在临床化验中,常用于去除血浆蛋白质的化学试剂为( )。
A.丙酮
B.硫酸铵
C.醋酸铅
D.稀盐酸
E.三氯醋酸
参考答案:E
一个篮球打九折出售后,售价72元,原价______元.
Though I am improving in my study, I still have a long way to go _____some of my classmates.
A.to compare with
B.to compare to
C.compared with
D.comparing with